数组

#include<iostream>
#include <vector>
using namespace std;

int main()
{

    int ia[3][4] = {1,2,3,4,5,6,7,8,9,10,11,12};
    int(*p)[4] = ia;
    p = &ia[1];


    //cout << ia[1][2] << endl;
    //cout << p[1][3] << endl;

    /*
    **p    ---->ia[0][0]的值
    *p    ---->第一行的含4个整数的数组的首元素的首地址，即ia[0][0]的地址
    p    ----> 外层第一行的首地址
    */
    for (auto p = ia; p != ia + 3; ++p)
    {
        for (auto q = *p; q != *p+4; ++q)
        {
            cout << *q<<' ';
        }
        cout << endl;
        
    }

    for (auto p = begin(ia); p != end(ia); ++p)
    {
        for (auto q = begin(*p); q != end(*p); ++q)
        {
            cout << *q << ' ';
        }
        cout << endl;
    }

    cout<<"hello"<<endl;
    system("pause");
    return 0;
}